1. Tools That Help Us See Celestial Objects
SPACE

2. Learning Goals
To be able to describe the tools available to explore space

3. Astronomers cannot conduct experiments on celestial objects
They can only observe them at a distance
Today’s technology allows us to see farther into space than ever before

4. Telescopes
Allows us to see objects that are very far away

5. Refracting Telescope
Uses lenses to magnify images

6. Reflecting Telescope
Uses a series of mirrors

7. Telescopes in Space
Earth’s atmosphere prevents images from being as clear as they could be
Telescopes are often placed on high mountains or in space to get a clearer view of the sky
In 1990, the Hubble Space Telescope (HST) was launched into orbit around Earth

9. Light Pollution
Excess light produced by cities and towns at night

10. Success Criteria
I CAN describe the tools we can use to explore space